look into AmCharts v4 - Githubissues

tomwayson commented 6 years ago

tomwayson commented 5 years ago

according to @benstoltz v4 charts are accessible by default

benstoltz commented 5 years ago

@tomwayson So I looked into this quite thoroughly. My tldr (in the auspices of accessibility are:)

The timeline for V3 is looking like this: Updates: End of 2019. Support: End of 2020.

So not immediately zomg, but we should be working towards this. Considerations:

We want to keep our spec the same
overrides will break (probably)
from the perspective of the hub, not load both amcharts 3 and 4 at the same time, BUT it is a possibility.

overall things to keep in mind in terms of internals we'd have to change:

Serial and XY have merged into XYCHART which now supports any number of axes, and of any types or combinations.
Graphs have become series. This may make things easier for us.
pie charts might be easier to work with. You can even have nested pie charts like https://codepen.io/team/amcharts/pen/PQrvJr
anything can be animated
properties become 'states'. IE instead of a hover property you have a hover state which can override any and all props for the elme
data has changed a bit to support real time data / effectively data can be added incrementally
V3 === script files / global variables. V4 === modules that can be imported.

Esri / cedar